Machine for producing raised printing



s. LIPSIUS.

MACHINE FOR PRODUCING RAISED PRINTING.

APPLICATION FILED MAR, 23, I920.

1,391,743. I PatentedSept. 27, 1921.

v 2 SHEETS-SHEET I- m 20 gmvewtoz Jamw/ '0J/Z/5 hyfibs 8 6 60 wax S. LIPSIUS. MACHINE FOR PRODUCING RAISED PRINTING; I APPLICATION FILED MAR. 23. I920- V 1,391,743. Patentedfiept. 27,1921.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

SAMUEL LIPSIUS, OF NEW YORK, N. Y.

MACHINE FOR PRODUCING RAISED PRINTING.

Specification of Letters Patent.

Patented Sept. 27, '1921.

Application filed March 23, 1920. Serial No. 368,017.

To all whom z'tmag concern:

Be it known t atI, S MUnn LIQPBIUS,V'.&. citizen ofthe United States of America, re-.

' siding at 500 West;176th street; city, county,-

3 jan'd iState -of New York, have inventeda new and] useful -Machine for Producing Raised Printing, of which the following is a specification; My invention relates \in chine for producing raised printing and more particularly to the means for. roperly apply ng the powder to a printed s eet; In general the object is to provideasimeple, inex ensive machine for properl treat ing a printed sheet to produce raise ing or embossed effects. 7

Another object of my invention is to pro- ,vide a machine for automatically applying a fusiblepowder to a printed sheet.

.from the sheet orv that which Another object is to provide means for automatically removing the excess powder does not ad"-, hereto the moist ink. p d I Another object is toprovide means for returning the excess powder removed 'from thesheet back'into the powder distributing receptacle.

- embossed effects, it isusual to Other objects and advantages will appear as the specification roceeds. 4 In the art of pro ucing. raised printing or ta e printed sheets as they come from the press,"and before the ink has dried to apply a fusible powder, such asis well known in the art, to the sheets, and then to sharply'strike the sheet in orderz-to remove the powder which does not adhere tothe moist ink. The sheet withthe powderadhering to the ink, is then placed in a heater where the powder, and ink amalgamate and swell, and produce the raised printing or embossed effect. "The sheet is then cooled after which it is ready for use. p i

The usual method above outlined presents a number of difficulties. Each sheet must be manually handled by an operative and this hand labor being slowand expensivethe cost of the finished product lisgreatly increased. Part of the powder which is knocked from the sheet is blown about by air currents and is lost. The powder in the air gets on other machines, soils the clothing, and is also breathed by operatlves in the shop.

My machine is designed to overcome-to a large e tent the above difiiculties and others,

' lheatenj p r V Fig. '2 is-a top-.plan view thereof with. the

'j. trough flike' r ca Pri a be provided an aperture In the drawings which show merely a I preferred form. of the invention,

Figure 1 is aside elevationof my machine and, showing a fragmentary portion jof' a hood removed from the powder distributing.

n 'receptacle.- general to. a ma- Fig. 7 3 is section taken the plane of the l1ne'3*3 of'-]F ig. .2 looking in thedirection of the arrows.

' Fig. 4 i a detail perspective vie wlof a g pow er from a s eet'.

of a means for returning the excess powder to the powder dlstributing receptacle.

On a. suitable 'preferablyportable frame-5 is mounted a horlzontal conveyerfGu- This tacle for receiving excess. v 3 Fig. 5 1s a fragmentary perspective view conveyer may be conveniently formed by prov'i grooved ulleys 7 and 8 supported on the .rame. 11 thesepulleys maybe placed suitable conveyer belts 9,9 in the orm'of cords or other suitable belts. On

the framaj I also mount" an inclined con-,

veyer 10 which 'maygbeponveniently formed l groovedpulley 11 and by providing continuous belts over the pulleys 8 and 11. It is to be'unde'rstood that theconveyer supports by supporting from the frame another may be adjustable as by means of slots such I provided in the supports or in the frame. Y i

Adjustably supported from the frame and above one of the conveyers, preferably the horizontal'conveyer, is a powd'er distributmg receptacle 13; This rece tacle I prefer "receptac e to be operative and to distribute powder, I may provide one or more bands reaches 131 around the exterior so'as tocause the receptacleito be in effect partially solid or imperforate. The lower end of the tube 15 may be partially. removedon'oneside as shown at 17 to provide-a spoon effect for the purpose ofpic ingo-up' the 'owder and re turning the same to the pojw er distributing receptacle. About the receptacle 13, there may be provided a hood 18 to prevent the powder from being blown about and con taminating the air. Upon one end of the shaft 19 which rotatably supports the powder distributing receptacle, there may be provided a grooved pulley 20 for a purpose to be hereinafter described.

Beneath the powder distributing receptacle and conveyer, I prefer to provide a substantially trough-like receptacle 21, having converging sides 23 for directing owder to a point at the bottom. Forme integral with, or attached to the trough-like receptacle, there may be provided a channel-like member 23, having a substantially arcuate shape and provided with an upwardly extending lip or projection 24. n the wall 25 of the trough-like receptacle is provided an aperture affording communication between the trough-like receptacle and the channel. A suitable slide or gate 26 may be provided to close this aperture and a win nut 27, or other suitable means is provided for holding the gate in any desired position.

Adjacent the inclined conveyer, I rovide means for vibrating the conveyer; his vibrator may be conveniently formed as follows: U on an adjustable standard 28 supported f i'om the frame, I provide a plate 29 of press-board, metal, or other suitable material. A wear plate 30 may be provided if desired. Upon an adjustable standard 31 supported from the frame, I may rovide a vibrator 32 of any suitable shape, t e form shown eing a single square block. This vibrator 32 may be rotated by means of the pulley 33, as will be hereinafter described.

Means may be rovided for causing a sheet movin up t lie incline to be firmly engaged by t e conveyer. Such means may be convenlently formed by providing upon an adjustable standard a shaft 38' upon which may be journaled one or more sharp edged loose washers 39, adjustably secured against lateral movement by means of set collars such as 39'.

Suitable driving means such as an electric motor 34 will be provided for driving all of the moving parts of my machine. As shown, the shaft 35 of the motor is belted to an idle pulley 36, which is in turn belted to a pulley 37, which drives the conveyers. From the pulley 37 a suitable belt extends to pulley 20 for rotating the powder-distributin receptacle. The shaft 35 of the motor may a so be belted to a pulley 33 for driving the vibrator. It is to be understood that separate driving means may be provided for the two conveyers, but I prefer to drive one conveyer, and have the second conveyer driven by the first in order to get a uniform speed in both. Obviously any other suitable arrangement of belts or gears may be provided.

Adjacent my machine, I have indicated a heater 38, which may be of any suitable form, but I prefer to use a heater such as shown in the patents granted to me #1,l94,647 August 15, 1916, or #1,261,826, A ril 9, 1918. v

assin around the pulley 7 I have shown suitable elts 4O constituting part of a conveyer from a press (not shown). These belts 40 may pass over a suitable pulley on a press and the rinted sheets may be then automatically delivered b the press to the conveyer 6 as will be rea ily understood.

At times powder may tend to adhere to the trough-like receptacle and for the pur-' pose of causing the powder to descend to the lower part of the receptacle I have shown a tapper or vibrator 41 which may be su ported from the frame and driven by t e motor 34 if desired.

The operation of my machine is as follows:

Printed sheets from a press, before the ink has dried, are brought to my machine either by means of a conveyer or slide chute, or by hand. B whatever means the sheets are brought 'to t e machine, each sheet will go on to the conveyer 6, and since both conveyers, powder distributing receptacle, vibrator and heater are working, the sheet will be carried alon beneath the powder distributing receptac e. The powder from said receptacle will fall en masse, that is both large and small particles, through the screen and upon the sheet, both where the latter is printed and upon other parts. The powder covered sheet will continue on the conveyer and pass up the incline. If the incline be too steep, or if for other reasons the sheet should tend to slide down, the latter will be caused to engage the conveyer belts by the sharp washers 39, and continue up the incline. Since the vibrator 32 is bein operated, the plate 29 which( is in proximity to the conveyer, will likewise vibrate the conveyer and sheet, and cause the powder thereon which is not adhering to the moist ink to slide off the sheet, and down into the trough-like receptacle 21 hereinbefore described. The sheet will then ass from the conveyer into the heater 38 w ere the amalgamation of the ink and powder will" take place.

The gate 26 being open, the owder in the trough-like receptacle will side down into the channel. The tube or arm 15 of the powder distributing receptacle will thus in its passage through the channel pick up the powder, and when the tube gets to an inclined or vertical position, the powder will slide down into the powder distributing receptacle to be used over again.

If it is desired for any reason to use all of the powder from the pqwder distributing receptacle and not have the surplus returned thereto, the gate 26 may be closed, and there will then of course be no powder in the channel for the tube or arm 15 to pick up. The same result may be accomplished by removing the outer end of the tube 15 so that it will not dip into the channel.

In order to fill the powder distributing receptacle, the powder may be placed in the trough-like receptacle 21, having the gate 26 open, and the machine operated. The powder will thus be automatically carried up and deposited in the powder distributing receptacle.

It will be'obvious that a single inclined conveyer could be used in place of the two conveyers shown.

My machine, being relatively light and portable, may be readily moved about into proximity to a press or a heater.

While I have described in some detail a preferred embodiment of my invention, I

do not wish to be limited to the form shown, for the invention may be embodied in various forms coming within the scope of the appended claims.

I claim:

1. In a device of the character described,

a horizontal conveyer and an inclined conveyer adjacent thereto, means for operating said conveyers, a rotatable powder-distributing receptacle supported above and adjacent to one of said conveyers, a hood above said powder receptacle, means for causing a printed sheet to be firmly engaged by and moved by one of said conveyers, means 'for vibrating said inclined conveyer to cause excess powder on a sheet to fall ofi,

a trough-like receptacle beneath one of said conveyers to receive the powder falling off a sheet, and means for returning the powder from said trough-like receptacle to said powder-distributing receptacle.

2. In a device of the character described,

inclined means for conveying a printed sheet to .a heater, means for depositing powder on the sheet, and a vibrator for the conveyer to cause excess powder to fall off. 3. In a device of the character described, an inclined conveyer for conveying a printed sheet to a heater, means for depositing powder on the sheet, means for causing said sheet to be engaged by and moved by said conveyer and to prevent said sheet from slidin down the incline, and a vibrator for vibrating the sheet to cause excess powder to fall off.

4. In a device of the character described, a conveyer for conveying a printed sheet to a heater, a rotatable powder-distributing receptacle supported above said conveyer, said rece tacle being perforated to ermit powder t erefrom to fall upon the sheet, and means for rotating said receptacle.

5. In a device of the character described. a a conveyer for conve ing a printed sheet to a heater, a powderistributmg receptacle supported above said conveyer, said recepwhich powder from the troughtacle flows, and a mechanical conveyer for the sheet, means for vibrating the conveyer to remove excess powder from the sheet thereon, and a receptacle for receiving said excess powder.

7. In a device of the character described, an inclined conveyer for conveying a printed sheet to a heater, means for depositing powder upon said sheet, a plate supported beneath and adjacent'to said conveyer, and means for vibrating said plate to cause the conveyer and sheet to be vibrated to remove the excess powder from the sheet.

8. In a device of the character described, a conveyer for conveyin a printed sheet to a heater, a powdersdistributing recep-- tacle supported above said conveyer, part of said rece tacle comprising a screen to permit pow er to passtherethrough and fall upon the sheet, a trough-like receptacle supported beneath said conveyer to receive the excess powder from sai powder-distributingreceptacle, and a mechanical con- Veyer for returning said excess powder to the powder-distributing receptacle.

9. In a device of the character described, a conveyer for conveying a sheet to a heater, a powder-distributing receptacle supported above said conveyer and adapted to permit powder to fall upon the sheet, a trough-like receptacle supported beneath said conveyer to receive the excess powder from said distributing receptacle, a channel'communicating with said trough-like receptacle into ike recepconveying powder from said channel back into said powder-distributing receptacle.

10. In a combination such as set forth in claim 9, said mechanical conveyer for conveying powder comprising an arm dip- .ping into said channel and serving to convey powder to said distributing receptacle when the latter is rotated.

11. In a combination such as set forth in claim 9, and amovable gate between said trough-like receptacle and said channel for closing communication between said parts.

12. In a device of the character described, means for conveying a printed sheet to a heater, a powder distributing receptacle for permitting powder to fall upon the sheet, said receptacle including a perforated screen and means for covering a part of said screen so as to permit powder to pass through only a predetermined portion thereof.

13. In a, device of the character described, a conveyer for a sheet, an inclined conveyer adjacent said first named conveyer, a powder distributing receptacle above one of said conveyers and means for varying'the inclination of said inclined conveyer.

14. In a device of the char'acterdescribed a frame carrying a conveyer for a printed sheet, a conveyer for conveyin sheets from a press to said first mentions conveyer, a rotatable powder distributing receptacle above said first mentioned conveyer topermit powder to fall upon the sheet, means for removing excess powder'from the sheet and means for receivi said excess powder.

15. In a device d? the character described, a conveyer for a printed sheet, a powder to receive said excess powder from said distributin receptacle, and a mechanical conveyer or conveying powder from said trough-like receptacle back into said powder distributing receptacle.

17. In a combination such as set forth in claim 16, said conveyer comprisin a. mov able arm for receiving owder rom the trough-like receptacle an SAMUEL Lrrsi s.

returning it to said distributing receptacle. 

